... Array jackAcupuncture : 13 Turn on/off 14 increase strength 15 reduce strength 16 wrist strap jack19 Slice for physical therapy ... again.1, 70%(+)30%(-), advised for most people2, 15(+)10(-)5(+), unit: minute3, 10(-)15(+)5(-), unit: min 4, All positive: for clinic ... , people can adjust the strength by button "+" or "-"(totally 10 strength choices).4. Infrared waist belt operationPut the infrared belt ...